Efficient cleaning equipment for PET plastic recovery

By designing a cleaning device that combines a U-shaped frame, a cylinder, and a stirring shaft, the problem of residual moisture inside PET plastic bottles during recycling has been solved, achieving efficient cleaning and convenient handling, and improving the overall efficiency of plastic recycling.

CN223918388UActive Publication Date: 2026-02-17JIANGSU GUANGCHUANG ECO-TECH CO LTD
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Patent Information

Application Number
CN202520271675.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2026-02-17
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

Existing PET plastic recycling equipment cannot effectively remove residual moisture from plastic bottles during the cleaning process, affecting subsequent handling and crushing processes.

Method used

A high-efficiency cleaning device for PET plastic recycling was designed, which includes a loading mechanism and a cleaning mechanism. By using a U-shaped frame, cylinder, stirring shaft and motor, the plastic is tumbled by the stirring shaft, so that the bottle mouth is facing down to discharge residual water. The cleaning effect is optimized by combining water inlet pipe and drainage system.

Benefits of technology

It effectively removes residual moisture from plastic bottles, improves the efficiency of plastic handling and crushing, and enhances cleaning effectiveness and resource recycling rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses efficient cleaning equipment for PET (polyethylene terephthalate) plastic recovery, which comprises a feeding mechanism and a cleaning mechanism, the feeding mechanism comprises a cleaning chamber and a feeding channel connected and communicated with the cleaning chamber, comprising a U-shaped frame penetrating through the top and the bottom of the cleaning chamber in a sliding mode, an air cylinder connected between the cleaning chamber and the U-shaped frame, a stirring shaft movably installed in the U-shaped frame, a motor connected between the U-shaped frame and the stirring shaft, a water inlet pipe connected and communicated with the stirring shaft and a plurality of through holes formed in the stirring shaft. According to the plastic cleaning device, when plastic in the cleaning chamber is cleaned, the blanking cap is opened to drain water, then the output shaft of the motor is continuously controlled to rotate, then the stirring shaft continuously stirs the plastic, and the plastic rolls over in the cleaning chamber at will, so that bottle openings of plastic bottles in plastic raw materials can face downwards, and residual water in the bottles is effectively drained; and subsequent plastic carrying and crushing procedures are facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of plastic recycling technology, specifically to a high-efficiency cleaning device for PET plastic recycling. Background Technology

[0002] With the continuous increase in the consumption of plastic products, the amount of waste plastic is also constantly increasing. Currently, my country's waste plastics mainly consist of plastic films, plastic filaments and woven products, foam plastics, plastic packaging boxes and containers, daily-use plastic products, plastic bags, and agricultural mulch films. In addition, my country's annual consumption of plastics for automobiles has reached 400,000 tons, and the annual consumption of plastics for electronic appliances and household appliances has reached more than 1 million tons. These products, once scrapped, become a significant source of waste plastics. It is understood that in 2004, the amount of waste plastics in China reached approximately 11 million tons. Improper storage, transportation, processing, and subsequent treatment of these waste plastics, especially the application of waste plastic raw materials, will inevitably damage the environment and endanger public health.

[0003] Application number CN202323413655.5 specifically describes a cleaning device for plastic recycling, including a cleaning tank and other structures. This utility model can scrub waste plastics, achieving better cleaning results and higher cleaning efficiency. It also allows for the recycling of cleaning water, saving water resources, making it more environmentally friendly and practical. However, in actual use, although a drive rod moves long and short brush arms to agitate the plastic, this horizontal rotation cannot invert bottle-shaped plastics, resulting in the cleaned plastic bottles containing a large amount of water, which is inconvenient for subsequent handling, crushing, and recycling processes. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A high-efficiency cleaning device for PET plastic recycling includes a feeding mechanism and a cleaning mechanism. The feeding mechanism includes a cleaning chamber, a feeding channel connected and communicating with the cleaning chamber, a U-shaped frame slidingly passing through the top and bottom of the cleaning chamber, a cylinder connected between the cleaning chamber and the U-shaped frame, a stirring shaft movably installed inside the U-shaped frame, a motor connected between the U-shaped frame and the stirring shaft, a water inlet pipe connected and communicating with the stirring shaft, and multiple through holes opened on the stirring shaft. The stirring shaft is located inside the cleaning chamber, and the water inlet pipe slides through the top of the cleaning chamber.

[0007] By adopting the above technical solution, when the plastic in the cleaning chamber is cleaned, the plug is opened to drain the water, and then the motor output shaft is controlled to rotate. Then the stirring shaft continues to stir the plastic, and the plastic rolls freely in the cleaning chamber. This allows the plastic bottle openings in the plastic raw material to face downwards, effectively draining the residual water in the bottle, which facilitates the subsequent handling and crushing processes of the plastic.

[0008] In a preferred embodiment, the present invention can be further configured such that: the bottom of the cleaning chamber is connected to and communicates with a discharge pipe, and a solenoid valve is installed on the discharge pipe.

[0009] In a preferred embodiment, the present invention can be further configured such that: a drain pipe is connected and communicated to one side of the cleaning chamber, and a plug is screwed onto the outer end of the drain pipe.

[0010] In a preferred embodiment, the present invention can be further configured such that baffles are installed at both bottom ends of the U-shaped frame, and the bottom area of ​​the baffles is larger than the bottom area of ​​the bottom ends of the baffles.

[0011] In a preferred embodiment, the present invention can be further configured such that: multiple reinforcing ribs are welded to the outer side of the cylinder body, the multiple reinforcing ribs are equally spaced and arranged in a ring, and the bottom of the reinforcing ribs is fixedly connected to the top of the cleaning chamber.

[0012] In a preferred embodiment, the present invention can be further configured such that: an opening is provided on the cleaning chamber, and the motor is movably disposed inside the opening.

[0013] In a preferred embodiment, the present invention can be further configured such that the stirring shaft is connected to the interior of the cleaning chamber through multiple through holes.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] 1. In this utility model, when the plastic in the cleaning chamber is cleaned, the plug is opened to drain the water, and then the motor output shaft is controlled to rotate. Then the stirring shaft continues to stir the plastic, and the plastic rolls freely in the cleaning chamber. This allows the plastic bottle mouth in the plastic raw material to face downwards, effectively draining the residual water in the bottle, which facilitates the subsequent handling and crushing processes of the plastic.

[0016] 2. In this utility model, PET plastic is fed into the cleaning chamber through the feeding channel. Then, the external water source is connected to the water inlet pipe. Clean water flows through the water inlet pipe and the stirring shaft, and then enters the cleaning chamber through multiple through holes. During this period, the motor drives the stirring shaft to rotate, and the stirring shaft stirs the plastic soaked in the water. After the clean water level reaches a certain height, the external water source is disconnected first, and then the motor continues to operate, giving the plastic sufficient cleaning time to improve the plastic cleaning effect. During this period, the movable end of the cylinder reciprocates, and then the U-shaped frame carries the motor and stirring shaft to rise and fall in cycles, allowing the stirring shaft to stir the plastic at any height, which further improves the plastic cleaning effect. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is a bottom view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the dispensing mechanism of this utility model;

[0020] Figure 4 This is an enlarged view of the cleaning mechanism of this utility model.

[0021] Figure label:

[0022] 100. Feeding mechanism; 110. Cleaning chamber; 120. Feeding channel;

[0023] 200. Cleaning mechanism; 210. U-shaped frame; 220. Cylinder; 230. Stirring shaft; 240. Motor; 250. Water inlet pipe;

[0024] 300. Discharge pipe;

[0025] 400. Drain pipe;

[0026] 500, baffle;

[0027] 600. Reinforcing ribs;

[0028] 700, Opening. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0030] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0031] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a high-efficiency cleaning device for PET plastic recycling.

[0032] Example 1:

[0033] Combination Figure 1-4 As shown, the present invention provides a high-efficiency cleaning device for PET plastic recycling, including a feeding mechanism 100 and a cleaning mechanism 200. The feeding mechanism 100 includes a cleaning chamber 110 and a feeding channel 120 connected to and communicating with the cleaning chamber 110.

[0034] The cleaning mechanism 200 includes a U-shaped frame 210 that slides through the top and bottom of the cleaning chamber 110, a cylinder 220 connected between the cleaning chamber 110 and the U-shaped frame 210, a stirring shaft 230 movably installed inside the U-shaped frame 210, a motor 240 connected between the U-shaped frame 210 and the stirring shaft 230, a water inlet pipe 250 connected and communicating with the stirring shaft 230, and multiple through holes opened on the stirring shaft 230. The stirring shaft 230 is located inside the cleaning chamber 110, and the water inlet pipe 250 slides through the top of the cleaning chamber 110.

[0035] Furthermore, the bottom of the cleaning chamber 110 is connected to and communicates with a discharge pipe 300. A solenoid valve is installed on the discharge pipe 300. When the solenoid valve is opened, the cleaned plastic in the cleaning chamber 110 can be discharged uniformly from the discharge pipe 300, making it convenient to remove the plastic.

[0036] Furthermore, a drain pipe 400 is connected and communicated on one side of the cleaning chamber 110. A plug is screwed onto the outer end of the drain pipe 400. The drain pipe 400 provides conditions for easy discharge of sewage, while the plug can control the sewage discharge time.

[0037] Furthermore, the cleaning chamber 110 has an opening 700, and the motor 240 is movably disposed inside the opening 700. The opening 700 provides conditions for the motor 240 to move up and down with the U-shaped frame 210.

[0038] Furthermore, the stirring shaft 230 is connected to the interior of the cleaning chamber 110 through multiple through holes. The structural design of the stirring shaft 230 ensures that clean water can be injected into the interior of the cleaning chamber 110.

[0039] Example 2:

[0040] Combination Figure 1 , 2 and Figure 4As shown, based on Embodiment 1, baffles 500 are installed at both bottom ends of the U-shaped frame 210. The bottom area of ​​the baffles 500 is larger than the bottom area of ​​the bottom end of the U-shaped frame 210. The baffles 500 can prevent the U-shaped frame 210 from being raised too high and prevent water in the cleaning chamber 110 from leaking from the bottom end of the cleaning chamber 110.

[0041] Example 3:

[0042] Combination Figure 1 As shown in the above embodiment, multiple reinforcing ribs 600 are welded to the outer side of the cylinder body of the cylinder 220. The multiple reinforcing ribs 600 are equally spaced and arranged in a ring. The bottom of the reinforcing ribs 600 is fixed to the top of the cleaning chamber 110. The reinforcing ribs 600 can strengthen the installation of the cylinder 220 and make the lifting of the U-shaped frame 210 more stable.

[0043] The working principle and usage process of this utility model are as follows: When this device is put into actual use, PET plastic is fed into the cleaning chamber 110 through the feeding channel 120. Then, the external water source is connected to the water inlet pipe 250, and clean water flows through the water inlet pipe 250 and the stirring shaft 230, and then enters the cleaning chamber 110 through multiple through holes. During this period, the motor 240 drives the stirring shaft 230 to rotate, and the stirring shaft 230 stirs the plastic soaked in water. After the clean water level reaches a certain height, the external water source is disconnected first, and then the motor 240 continues to operate, giving the plastic a thorough cleaning. Sufficient cleaning time is required to improve the cleaning effect of plastics. During this period, the movable end of cylinder 220 reciprocates, and then U-shaped frame 210 drives motor 240 and stirring shaft 230 to rise and fall in cycles, allowing stirring shaft 230 to stir plastics at any height, which further improves the cleaning effect of plastics. After cleaning, the plug is opened so that the sewage in cleaning chamber 110 can be discharged from drain pipe 400. Then, motor 240 is kept working while stirring shaft 230 remains stationary and tumbles the plastic, causing the plastic bottles in the plastic to be turned upside down, effectively draining the residual water in the bottles.

[0044] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high-efficiency cleaning device for PET plastic recycling, characterized in that, include: The feeding mechanism (100) includes a cleaning chamber (110) and a feeding channel (120) connected to and communicating with the cleaning chamber (110); The cleaning mechanism (200) includes a U-shaped frame (210) that slides through the top and bottom of the cleaning chamber (110), a cylinder (220) connected between the cleaning chamber (110) and the U-shaped frame (210), a stirring shaft (230) movably installed inside the U-shaped frame (210), a motor (240) connected between the U-shaped frame (210) and the stirring shaft (230), a water inlet pipe (250) connected and communicating with the stirring shaft (230), and multiple through holes opened on the stirring shaft (230). The stirring shaft (230) is located inside the cleaning chamber (110), and the water inlet pipe (250) slides through the top of the cleaning chamber (110).

2. The efficient cleaning device for PET plastic recycling according to claim 1, characterized in that, The bottom of the cleaning chamber (110) is connected to and communicates with a discharge pipe (300), and a solenoid valve is installed on the discharge pipe (300).

3. The high-efficiency cleaning equipment for PET plastic recycling according to claim 1, characterized in that, The cleaning chamber (110) is connected to and communicates with a drain pipe (400) on one side, and a plug is screwed onto the outer end of the drain pipe (400).

4. The high-efficiency cleaning equipment for PET plastic recycling according to claim 1, characterized in that, The U-shaped frame (210) is equipped with baffles (500) at both bottom ends, and the bottom area of ​​the baffles (500) is larger than the bottom area of ​​the bottom end of the baffles (500).

5. The high-efficiency cleaning equipment for PET plastic recycling according to claim 1, characterized in that, The cylinder (220) has multiple reinforcing ribs (600) welded to the outside of the cylinder body. The multiple reinforcing ribs (600) are evenly spaced and arranged in a ring. The bottom of the reinforcing ribs (600) is fixedly connected to the top of the cleaning chamber (110).

6. The high-efficiency cleaning equipment for PET plastic recycling according to claim 1, characterized in that, The cleaning chamber (110) has an opening (700), and the motor (240) is movably disposed inside the opening (700).

7. The high-efficiency cleaning equipment for PET plastic recycling according to claim 1, characterized in that, The stirring shaft (230) is connected to the interior of the cleaning chamber (110) through multiple through holes.

Citation Information

Patent Citations

  • Cleaning equipment for plastic recycling

    CN221968608U